Take pregnancy test: Are you from Sri Lanka? Just curious! If I understand correctly, you used to take Levothyroxine 50mcg but have since increased dose to 100mcg. Your period is now late so you're wondering if this is due to dose change, right? While thyroid disease can alter menses, I think it's more important that you take pregnancy test, assuming that you've engaged in unprotected sex. If not, irregular menses com
Answered 6/1/2015
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